Questions on UI for WPF Forum

1 answer

130 views

Hi,

is it possible to use a radmenue in a tooltip or as a tooltip? I want to open a menue from a individuell tooltip out of
a ListBoxitem!

thanks
rene

Menu

answered on 16 May 2012

3 answers

259 views

Chart runtime exceptions in your samples

When you run your samples for the Chart control to look at the 3d pie chart, these errors are thrown. Your code is a pretty simple bind to IEnumerable. What should I do to avoid this when plugging your charts into my app?

System.Windows.Data Error: 23 : Cannot convert '{DisconnectedItem}' from type 'NamedObject' to type 'System.Collections.IEnumerable' for 'en-US' culture with default conversions; consider using Converter property of Binding. NotSupportedException:'System.NotSupportedException: ReferenceConverter cannot convert from MS.Internal.NamedObject.

at System.ComponentModel.TypeConverter.GetConvertFromException(Object value)

at System.ComponentModel.TypeConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)

at System.ComponentModel.ReferenceConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)

at MS.Internal.Data.DefaultValueConverter.ConvertHelper(Object o, Type destinationType, DependencyObject targetElement, CultureInfo culture, Boolean isForward)'

System.Windows.Data Error: 6 : 'ObjectSourceConverter' converter failed to convert value '{DisconnectedItem}' (type 'NamedObject'); fallback value will be used, if available. BindingExpression:Path=DataContext; DataItem='LabelLayer' (Name=''); target element is 'LabelLayer' (Name=''); target property is 'ItemsSource' (type 'IEnumerable') NotSupportedException:'System.NotSupportedException: ReferenceConverter cannot convert from MS.Internal.NamedObject.

at MS.Internal.Data.DefaultValueConverter.ConvertHelper(Object o, Type destinationType, DependencyObject targetElement, CultureInfo culture, Boolean isForward)

at MS.Internal.Data.ObjectSourceConverter.Convert(Object o, Type type, Object parameter, CultureInfo culture)

at System.Windows.Data.BindingExpression.ConvertHelper(IValueConverter converter, Object value, Type targetType, Object parameter, CultureInfo culture)'

Chart

answered on 16 May 2012

5 answers

255 views

Problem with Negative Values on Masked Input

I am trying to resolve an issue with weird behavior on a RadMaskedCurrencyInput control when entering negative values. I believe you would experience similar issues with other masked input controls. I currently have this control:
<telerik:RadMaskedCurrencyInput />
If you run this and try to enter -500 for example, the textbox does not take in the negative. You have to type the 500, then the "-" for the textbox to recognize the negative value.

I have also noticed that if you load the control with a default value, then the negative is recognized when you type it in.
<telerik:RadMaskedCurrencyInput Value="51.64" />

Basically, try this control without a default value and you will see some pretty funky behavior when trying to enter a negative number.

Any feedback will be helpful.
Thanks.

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 16 May 2012

5 answers

339 views

Can cells in a column skip Tab

Hi,
I have a grid witch has frozen readonly columns, can I make them unselectable or not to accept tab, enter & mouseclick ?

Best regards
Kristján

GridView

answered on 16 May 2012

6 answers

526 views

Custom Theme Brushes

Hi,
I just read in your wpf documentation section to change theme brushes for Metro Custom theme. i.e.

MetroColors.PaletteInstance.MainColor = Colors.Black;
MetroColors.PaletteInstance.AccentColor = Colors.Orange;
MetroColors.PaletteInstance.BasicColor = Colors.DarkGray;
MetroColors.PaletteInstance.StrongColor = Colors.Gray;
MetroColors.PaletteInstance.MarkerColor = Colors.LightGray;
MetroColors.PaletteInstance.ValidationColor = Colors.Red;

Can i do the same for other telerik themes like Windows7Theme?

General Discussions

answered on 15 May 2012

0 answers

90 views

Grid, DataForm, Data Filter in code not xaml

Anyone know of C# code examples that show a RadDataFilter, RadGridView, and RadDataForm all using the same "Source"?
Something like this?

IEnumerable<MyClass> SomeResults;

SomeResults = GetResults();

MyDataForm.ItemsSource = SomeResults
MyDataFilter.Source = SomeResults;
MyGridView.ItemsSource = SomeResults;

I know in xaml you can do something like this for the grid
{Binding FilteredSource, ElementName=MyDataFilter}

but I have no idea how to pull this off in C# code.

When I scroll my grid, the Dataform does not move. When I select next in my dataform, the Grid selection does not move, and when I apply a filter, nothing gets filtered.

This setup (Filter, Grid, dataform) will be used to display items from multiple sources, therefore I have to do it all in code.

Thanks for any help.

Jeff

GridView

asked on 15 May 2012

2 answers

140 views

End User Receives Trial Notification

A user of our Click Once app took a screen capture of a trial notification they received while using our application.

RadControls for WPF Trial
You are runnng a trial version of RadControls for WPF.
Would you like to get details on purchasing a license?

The page in question makes use of the WPF Grid Control.
We have a license for all our developers - What is the issue?

The controls that were used for the build are the ones from the manage products section on the telerik site.
Specifically:
RadControls_for_WPF_2012_1_0326_Dev.msi

General Discussions

answered on 15 May 2012

1 answer

54 views

Two RadListBoxs with one Datasource Filter??

Hi,

i'm using two RadListBoxes with one Datasource. Is there any function to filter the items in the RadListBox?

Example:
ListBoxA             ListBoxB

DataSource:
New York, Status="A"
L.A, Satus="A"
Dallas, Status="B"

Result Now:

ListBoxA             ListBoxB
New York            New York
L.A.                    L.A.
Dallas                 DAllas

But i want to filter the status:
ListBoxA             ListBoxB
New York            Dallas
L.A.
Dallas

Thanks
Regards
Rene

ListBox

answered on 15 May 2012

4 answers

211 views

bound XamlProvider not updated when adding Paragraph in code behind

Hi

for storing RadDocument content in DB we use the Xaml format and get the Xaml
using the XamlDataProvider, binding its Xaml dependendency property
to a property of some custom class.

This works very well and reliably in virtually all situations and with
all kinds if RTF content.

Now I have a situation where I append a new paragraph to the richtextbox's
Document using

currentParagraph.Parent.Children.AddAfter(currentParagraph, newPargraph);

In this case both XamlDataProvider.Xaml doesn't change und doesn't update my bound
property and also the richtextbox's document isn't updated visually: the new paragraph is not displayed.
However when i check the xaml of richtextbox.Document using

xaml = new XamlFormatProvider().Export(richtextbox.Document);

the new Paragraph is there.

So there seems to be a discrepancy between the
"logical" content of the document and the one actually rendered.

How can that be?
Is my way of appending the paragraph not the recommend one?
Do i need some extra code for updating the document (kind of refresh or so?)?

Thanks
Chris

RichTextBox

answered on 15 May 2012

0 answers

94 views

DragandDrop between 2 ListBoxes

Hi!
I have a question/problem with DragAndDrop and listBoxes.
I have two collections:
   var coll1 = new ObservableCollection<User>() {new User() {Id = 1}, new User() {Id = 2}};
var coll2 = new ObservableCollection<User>() { new User() { Id = 2 }, new User() { Id = 4 } };
listbox1.ItemSource=coll1;
listbox2.ItemSource=coll2;

I can copy some items from listbox1 to listbox2 via draganddrop, but when i want to drag from listbox1 to listbox2 item User(id=2) I put listbox2.AllowDrop= false, because i don't want that listbox2 contains two equal items User(id=2)

So it works, but i want more ;) I want to show why it is impossible to drop item to listbox.

        private void OnDragInitialize(object sender, DragInitializeEventArgs e)
        {
            e.AllowedEffects = DragDropEffects.Copy;
            var data = ((FrameworkElement)e.OriginalSource).DataContext;
            e.DragVisual = new DragVisual()
            {
                Content = data,
                ContentTemplate = this.Resources["DragTemplate"] as DataTemplate
            };
            DataObject dataObject = new DataObject();
            dataObject.SetText(data.ToString());
            dataObject.SetData("DragData", data);
            dataObject.SetData("Text", data.ToString());
            e.Data = data;
        }

I want to show something like this link

Thanks in advance!

DragAndDrop

asked on 15 May 2012